CA2220356A1 - Self-aligning piston rod - Google Patents

Self-aligning piston rod

Info

Publication number
CA2220356A1
CA2220356A1 CA002220356A CA2220356A CA2220356A1 CA 2220356 A1 CA2220356 A1 CA 2220356A1 CA 002220356 A CA002220356 A CA 002220356A CA 2220356 A CA2220356 A CA 2220356A CA 2220356 A1 CA2220356 A1 CA 2220356A1
Authority
CA
Canada
Prior art keywords
piston rod
piston
sleeve
slot
crosshead
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA002220356A
Other languages
French (fr)
Other versions
CA2220356C (en
Inventor
Jerry E. Johnson
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Phoenix Energy Products Inc
Original Assignee
Phoenix Energy Products Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Phoenix Energy Products Inc filed Critical Phoenix Energy Products Inc
Publication of CA2220356A1 publication Critical patent/CA2220356A1/en
Application granted granted Critical
Publication of CA2220356C publication Critical patent/CA2220356C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J1/00—Pistons; Trunk pistons; Plungers
    • F16J1/10—Connection to driving members
    • F16J1/12—Connection to driving members with piston-rods, e.g. rigid connections
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/14—Pistons, piston-rods or piston-rod connections
    • F04B53/144—Adaptation of piston-rods

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Reciprocating Pumps (AREA)
  • Details Of Reciprocating Pumps (AREA)

Abstract

A piston pump having structure to maintain substantially parallel alignment of a piston rod and a crosshead extension as a crosshead slide undergoes wear. The structure includes a slot defined by the end of the piston rod for receiving a male pilot of the crossband extension. In a further embodiment, the piston rod has a male pilot and the end of the crosshead extension defines a slot for receiving the male pilot of the piston rod. The slot may be oblong in a direction transverse to the longitudinal axis of the piston rod. The structure may additionally or alternatively include a centering sleeve attached to the outer surface of the piston rod adjacent to and coaxial with the piston. A backflushing system may be used with the sleeve to keep the piston, piston sleeve, and pump cylinder cool. One such system has a conduit connected to the sleeve and in liquid communication with an annular cavity between the sleeve and the pump cylinder to circulate coolant therethrough.
CA002220356A 1996-11-15 1997-11-06 Self-aligning piston rod Expired - Fee Related CA2220356C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/751,084 1996-11-15
US08/751,084 US5778759A (en) 1996-11-15 1996-11-15 Self-aligning piston rod

Publications (2)

Publication Number Publication Date
CA2220356A1 true CA2220356A1 (en) 1998-05-15
CA2220356C CA2220356C (en) 2001-09-11

Family

ID=25020408

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002220356A Expired - Fee Related CA2220356C (en) 1996-11-15 1997-11-06 Self-aligning piston rod

Country Status (3)

Country Link
US (1) US5778759A (en)
CA (1) CA2220356C (en)
GB (1) GB2320754A (en)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2363628B (en) * 1997-04-11 2002-02-20 Gardner Denver Water Jetting S High pressure pump
US6171070B1 (en) * 1997-05-09 2001-01-09 Hakusu Tech Co., Ltd. High-pressure reciprocating pumps
US6164188A (en) * 1998-11-23 2000-12-26 Miser; H T Reciprocating pump/compressor with self-aligning piston
US6968772B2 (en) * 2003-09-03 2005-11-29 Taiwan Semiconductor Manufacturing Co., Ltd. Slide-type cylinder coupling for CMP load cup
DE102004062300A1 (en) * 2004-12-23 2006-07-13 BSH Bosch und Siemens Hausgeräte GmbH linear compressor
WO2010126959A2 (en) * 2009-04-30 2010-11-04 Tsc Offshore Group Limited Biaxial alignment assembly for force delivery device
US9121402B2 (en) 2009-09-03 2015-09-01 Schlumberger Technology Corporation Pump body
WO2011027274A2 (en) * 2009-09-03 2011-03-10 Schlumberger Canada Limited Pump assembly
US20110271831A1 (en) * 2010-05-06 2011-11-10 Gee Jr Occie Leon Water deflector for a mud pump
EP2543812B1 (en) * 2011-07-08 2014-11-05 Welltec A/S Downhole hydraulic pump
CN104121185B (en) * 2014-08-06 2016-05-11 无锡压缩机股份有限公司 A kind of piston rod is connected adjustment structure with crosshead body
EP3267034B1 (en) * 2016-07-07 2020-05-13 Cameron Technologies Limited Self-aligning mud pump assembly
WO2020198260A1 (en) * 2019-03-25 2020-10-01 S.P.M. Flow Control, Inc. Novel hinged plunger clamp with latch lock
US11560888B2 (en) * 2019-05-14 2023-01-24 Halliburton Energy Services, Inc. Easy change pump plunger
US11326693B2 (en) * 2020-02-13 2022-05-10 Schlumberger Technology Corporation Lubrication system for a piston pump
CN117685218B (en) * 2024-01-31 2024-04-23 四川宏华电气有限责任公司 Hyperboloid automatic aligning piston rod and processing technology thereof

Family Cites Families (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US534813A (en) * 1895-02-26 Air-brake pump and apparatus
US254129A (en) * 1882-02-28 hanson
US1774219A (en) * 1928-05-02 1930-08-26 Lewis C Sickel Wrist-pin bearing
US1725337A (en) * 1928-05-03 1929-08-20 White Eagle Oil And Refining C Valve
US1977075A (en) * 1932-04-19 1934-10-16 Fmc Corp Piston
GB1063896A (en) * 1964-08-11 1967-04-05 Dresser Ind A valve assembly for a gas expansion engine
US3720140A (en) * 1971-08-27 1973-03-13 Murphy Ind Inc Pump piston
US3789675A (en) * 1972-05-30 1974-02-05 Vilter Manufacturing Corp Gas compressor having rolling type sealing diaphragm
US4023469A (en) * 1972-08-09 1977-05-17 United States Steel Corporation Piston and piston rod construction for pumps and method of flushing piston-type pumps
US3923428A (en) * 1973-06-18 1975-12-02 Western Plaster Equipment Co L Pumps
US3883113A (en) * 1974-03-29 1975-05-13 Acf Ind Inc Fluid control ball valve structure for throttling service
US4033701A (en) * 1976-04-08 1977-07-05 Halliburton Company Clamp -- self aligning
DE2632476A1 (en) * 1976-07-19 1978-01-26 Imi Opella Ltd Mixing valve with rotary plug - has elastic sealing ring in groove on spring loaded insert piece
US4157057A (en) * 1976-11-18 1979-06-05 Reed Tool Company Single acting piston
US4160626A (en) * 1977-09-19 1979-07-10 Vapor Corporation Drive rod coupling for positive displacement pump
US4270440A (en) * 1979-02-22 1981-06-02 Weatherford/Dmc High pressure piston and seal
US4262880A (en) * 1979-06-29 1981-04-21 Nupro Company Plug valve
US4479513A (en) * 1981-08-28 1984-10-30 Whitey Co. High pressure ball valve
US4719845A (en) * 1985-12-05 1988-01-19 Adolph Coors Company Joint system
US4762301A (en) * 1987-02-06 1988-08-09 Whitey Co. Compact multi-service ball valve
US4977817A (en) * 1988-11-07 1990-12-18 Doman David G Motion modifier method and apparatus
US5085129A (en) * 1991-03-08 1992-02-04 Golden Technologies Company, Inc. Joint system
US5507219A (en) * 1994-02-08 1996-04-16 Stogner; Huey Fail-safe linkage for a reciprocating pump

Also Published As

Publication number Publication date
US5778759A (en) 1998-07-14
GB9724016D0 (en) 1998-01-14
CA2220356C (en) 2001-09-11
GB2320754A (en) 1998-07-01

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed